Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/quota_dispatcher.cc

Index: content/common/quota_dispatcher.cc
===================================================================
--- content/common/quota_dispatcher.cc	(revision 163290)
+++ content/common/quota_dispatcher.cc	(working copy)
@@ -18,6 +18,7 @@
 using WebKit::WebStorageQuotaError;
 using WebKit::WebStorageQuotaType;
 
+namespace content {
 namespace {
 
 // QuotaDispatcher::Callback implementation for WebStorageQuotaCallbacks.
@@ -135,3 +136,5 @@
                int(quota::kQuotaErrorNotSupported), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebStorageQuotaErrorAbort) == \
                int(quota::kQuotaErrorAbort), mismatching_enums);
+
+}  // namespace content